20 Jun
2011
20 Jun
'11
5:50 p.m.
2011/6/20 Tony Finch <dot@dotat.at>:
An organization that blocks 90% of spam with no false positives is incredibly useful.
Greylisting and reverse-DNS checks alone blocks 95-98% with no impact on mail sent from properly maintained mail servers. RBLs are only usefull for lazy mailadmins, and to save some network and CPU resources while avoiding greylisting and rDNS. But it implies you fully trust the RBL author, and some really ain't trustworthy. I'd rather loose some mails from poorly managed domains than rely on any external almighty authority, it looks to me like an incentive to consider SMTP administration seriously rather than using default settings from the package maintainer... -- Jérôme Nicolle